Ray tracing by implementing C++ language-based wavefront construction approach
Han Fu-xing1,2, Sun Jian-guo1,2, Yang Hao1,2
Lab of Integrative Interpretation Theory of Applied Geophysics, College of Geophysical Survey Science and Technology, Jilin University, Changchun City, Jilin Province, 130026, China
Abstract：In view of the difficulty existed in the process of wavefront paths computation that uses wavefront construction approach for ray tracing, the paper presented C++ language-based implementation approach.The C++ algorithm avoids the issues of data realignment and labeling coming from ray interpolation ( new rays inserting) and grid transform ( transformation from ray grid to rectangular grid). The data can be inserted at any time without considering data positioning in the computational process of program. Starting from kinematical ray-tracing system, we firstly briefly reviewed the basic equation and numeric computation approach of wavefront construction approach; then, introduced class-sum function used in C++ language, gave designing idea and implementing steps. The analysis of real cases showed that using C++ language to finish the ray tracing of wavefront construction approach can greatly reduce the work difficulty, and has rapidly computational and high efficient characters; all class-sum functions used in program implementation are independent subfunction and subroutine and do not rely on any platforms and routines, which can be transplanted easily.
韩复兴, 孙建国, 杨昊. 基于C++语言实现波前构建射线追踪[J]. 石油地球物理勘探, 2007, 42(4): 474-481.
Han Fu-xing, Sun Jian-guo, Yang Hao. Ray tracing by implementing C++ language-based wavefront construction approach. OGP, 2007, 42(4): 474-481.
